I didn't run into either of them, or the gallery, so I assume they are in book 4 or 5?

Spoiler

I didn't really detour while walking in Propast, as my escort was very insistent. Forgot about looking around, but everything seemed closed anyway. Not really the time for a gallery opening, I think, as no people are around to visit it.

It wouldn't make sense to open a gallery there at present time, no. Or any kind of business, as there's martial law(?). But that likely won't last forever, when Zoe's running around saving the world everything!

Wasn't there also some kind of book collecting planned to restock the library in Marcuria? Would this still make sense with how the story is developing? Maybe we'll have to wait for an extended edition to finally see these features implemented.

Wasn't there also some kind of book collecting planned to restock the library in Marcuria? Would this still make sense with how the story is developing? Maybe we'll have to wait for an extended edition to finally see these features implemented.

I thought there were a lot of books scattered around some of the locations this time. And if you bring Kian to the Enclave library he does mention that the rebels want to collect books to try and rebuild the library. So... It may be coming yet, I suppose.